Records of the Geological Survey of India, Volume 124, Part 2The Survey, 1991 - Earthquakes Vols. 1- include Report of the Geological Survey, 1867- ; v. 32- include Review of the mineral production of India, 1898/1903- ; v. 75 consists of Professional papers, no. 1-16; v. 76 consists of Bulletins of economic minerals. |
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Page 119
... Average grade Reserve for the whole prospect , leaving the top 15 m ore . Average grade WO , % INVESTIGATION FOR COAL BETWEEN BHANGTAR AND DEOTHANG , SAMDRUP JONGKHAR. Exploration for tungsten was continued in the Bhurkhola west block ...
... Average grade Reserve for the whole prospect , leaving the top 15 m ore . Average grade WO , % INVESTIGATION FOR COAL BETWEEN BHANGTAR AND DEOTHANG , SAMDRUP JONGKHAR. Exploration for tungsten was continued in the Bhurkhola west block ...
Page 179
... average width of 4.58m at 0.4 % cut off or 0.469 million tonnes of 2.74 % Cu for an average width of 3.23 m at 1.00 % cut off and a minimum stoping width of 1.00m has been estimated in the copper ore zone associated with garnet ...
... average width of 4.58m at 0.4 % cut off or 0.469 million tonnes of 2.74 % Cu for an average width of 3.23 m at 1.00 % cut off and a minimum stoping width of 1.00m has been estimated in the copper ore zone associated with garnet ...
Page 227
... average thickness of 1.5 to 2.5 m are mainly confined to 5 to 20 m isobaths in the area off Bavanapadu to Kapasukuddi . Beyond 20 m isobath the heavy mineral rich zone thins down and attains an average thickness of 0.3 to 0.5 m at depth ...
... average thickness of 1.5 to 2.5 m are mainly confined to 5 to 20 m isobaths in the area off Bavanapadu to Kapasukuddi . Beyond 20 m isobath the heavy mineral rich zone thins down and attains an average thickness of 0.3 to 0.5 m at depth ...
Contents
CENTRAL HEADQUARTERS | 6 |
AIRBORNE MINERAL SURVEYS AND EXPLORATION WING | 143 |
Overview of the Deputy Director General | 211 |
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aeromagnetic amphibolite AMSE Wing analysis Andhra Pradesh anomalies assemblage bands Barakar Formation BARREN MEASURES FORMATION basement basin Bhutan block boreholes carbonaceous Central chalcopyrite clay coal seams Coal Wing coarse grained Code copper mineralisation core Cruise deposits depth range DISTRICT drilling east eastern ENE-WSW evaluation EXPLORATION FOR COAL faults felsic field season fold geochemical GEOLOGICAL MAP gneisses Gondwana grade granite gravity grey Group heavy mineral ilmenite INDEX India indicate intersected investigation Kamthi Formation limestone lineament MADHYA PRADESH magnetic magnetite medium metamorphism migmatite million tonnes NW-SE occur ORISSA phyllite potential PRECAMBRIAN pyrite quartz quartzite Raniganj Raniganj Formation Regional exploration rocks Sakoli samples sand sandstone scale schist schist belt seabed seam zones sector sediments shale siltstone silty Singhbhum soil sq km Stratigraphy strike length sulphide surface surveys Talchir Formation tectonic thickness tion Toposheet trending tuff upto VALLEY COALFIELD varies volcanics zone